8.1.12.6 Technical data
Table 639: SPEMMXU Technical data
Characteristic Value
Operation accuracy At all three currents in range 0.10…1.20 × I
n
At all three voltages in range 0.50…1.15 × U
n
At the frequency f
n
±1 Hz
Active power and energy in range |PF| > 0.71 Re-
active power and energy in range |PF| < 0.71
±1.5% for power (S, P and Q)
±0.015 for power factor
±1.5% for energy
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
8.2 Disturbance recorder RDRE
8.2.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Disturbance recorder RDRE DR DFR
8.2.2 Functionality
The relay is provided with a disturbance recorder featuring up to 12 analog and
64 binary signal channels. The analog channels can be set to record either the
waveform or the trend of the currents and voltages measured.
The analog channels can be set to trigger the recording function when the
measured value falls below or exceeds the set values. The binary signal channels
can be set to start a recording either on the rising or the falling edge of the binary
signal or on both.
By default, the binary channels are set to record external or internal relay signals, for
example, the start or trip signals of the relay stages, or external blocking or control
signals. Binary relay signals, such as protection start and trip signals, or an external
relay control signal via a binary input, can be set to trigger the recording. Recorded
information is stored in a nonvolatile memory and can be uploaded for subsequent
fault analysis.
8.2.2.1 Recorded analog inputs
The user can map any analog signal type of the protection relay to each analog
channel of the disturbance recorder by setting the
Channel selection
parameter of
1MRS758755 C
Measurement functions
REC615 & RER615
Technical Manual
615
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